Textile printing pretreatment liquid, textile printing ink set, ink jet textile printing method, printed textile, and onium salt compound

Abstract

Provided are a textile printing pretreatment liquid including water and an onium salt compound represented by Formula (A) or Formula (B), a textile printing ink set, and an ink jet textile printing method. R A1 to R A4 and R B1 to R B6 each represent a hydrocarbon group that may include at least one of an aromatic ring, a hetero ring, —O—, —C(═O)O—, or a substituent. At least one of R A1 to R A4 and at least one of R B1 to R B6 include at least one of —O—, —C(═O)O—, —OH, or an allyl group and may include a substituent. X + represents N + or P + . Y − represents a counter anion. L represents a divalent linking group.

What is claimed is: 
     
       1. A textile printing ink set comprising:
 a textile printing pretreatment liquid comprising, water and an onium salt compound represented by Formula (A) below or Formula (B) below, 
 
       
         
           
           
               
               
           
         
         where, in Formula (A), 
       
       R A1  to R A4  each independently represent a hydrocarbon group that may include at least one of an aromatic ring, a hetero ring, an ether bond, an ester bond, or a substituent, 
       at least one of R A1  to R A4  is a hydrocarbon group that includes at least one of an ether bond, 
       an ester bond, a hydroxy group, or an allyl group and that may include a substituent, 
       at least two of R A1  to R A4  may be bonded together to form a ring, 
       X +  represents an ammonium cation or a phosphonium cation, and 
       Y −  represents a counter anion,
 in Formula (B), 
 
       R B1  to R B6  each independently represent a hydrocarbon group that may include at least one of a hetero ring, an ether bond, an ester bond, or a substituent, 
       at least one of R B1  to R B6  is a hydrocarbon group that includes at least one of an ether bond, an ester bond, a hydroxy group, or an allyl group and that may include a substituent, 
       at least two of R B1  to R B6  may be bonded together to form a ring, 
       two X + 's each independently represent an ammonium cation or a phosphonium cation, 
       two Y − 's each independently represent a counter anion, and 
       L represents a divalent linking group; and
 a textile printing ink comprising water and coloring resin particles, 
 wherein the coloring resin particles contain an oil-soluble dye and a polymer P including a hydrophilic group. 
 
     
     
       2. The textile printing ink set according to  claim 1 , wherein X +  in Formula (A) and two X + 's in Formula (B) each independently represent an ammonium cation. 
     
     
       3. The textile printing ink set according to  claim 1 , wherein at least one of R A1  to R A4  in Formula (A) and at least one of R B1  to R B6  in Formula (B) are each a hydrocarbon group that includes an aromatic ring and that may include at least one of a hetero ring, an ether bond, an ester bond, or a substituent. 
     
     
       4. The textile printing ink set according to  claim 1 , wherein, in the onium salt compound represented by Formula (A) or Formula (B), a cation structure has a molecular weight of 400 or less. 
     
     
       5. The textile printing ink set according to  claim 1 , wherein a content of the onium salt compound represented by Formula (A) or Formula (B) relative to a total amount of the textile printing pretreatment liquid is 5 mass % to 20 mass %. 
     
     
       6. The textile printing ink set according to  claim 1 , wherein the polymer P further includes a structural unit represented by Formula (1) below and a structural unit represented by Formula (2) below: 
       
         
           
           
               
               
           
         
         where, in Formula (1), 
       
       L 1  represents a hydrocarbon group, and 
       two *1's each represent a bonding site,
 in Formula (2), 
 
       L 2  represents a hydrocarbon group that has 2 to 50 carbon atoms and that may include an oxygen atom, a nitrogen atom, or a sulfur atom, or a polymer chain that is formed of a polyether chain, a polyester chain, a polycaprolactone chain, a polycarbonate chain, a polybutadiene chain, a polyisoprene chain, or a polyolefin chain and that has a number-average molecular weight of 500 or more, 
       Y 1  and Y 2  each independently represent —O—, —S—, or —NRz-, 
       Rz represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and 
       two *2's each represent a bonding site. 
     
     
       7. The textile printing ink set according to  claim 6 , wherein L 2  in Formula (2) above is a polymer chain that is formed of a polycarbonate chain or a polyether chain and that has a number-average molecular weight of 500 or more. 
     
     
       8. The textile printing ink set according to any one of  claim 1 , wherein the polymer P has a glass transition temperature of 50° C. or less. 
     
     
       9. The textile printing ink set according to  claim 1 , wherein the hydrophilic group in the polymer P is at least one selected from the group consisting of a carboxy group and a salt of a carboxy group. 
     
     
       10. The textile printing ink set according to  claim 1 , wherein the polymer P has a weight-average molecular weight of 8000 to 30000. 
     
     
       11. The textile printing ink set according to  claim 1 , wherein the oil-soluble dye includes an azo dye having an ionic group. 
     
     
       12. An ink jet textile printing method using the textile printing ink set according to  claim 1 , the method comprising:
 a step of pretreating a textile by applying the textile printing pretreatment liquid; 
 a step of applying the textile printing ink by an ink jet process to the pretreated textile; and 
 a step of heat-treating the textile to which the textile printing ink has been applied, to obtain a printed textile.